a buddy of mine has a 2003 k1500 with 4.10 diffs, and rear posi, and disc brakes hes parting out. i know the leaf pads on the rear will probably need to be redone, and have to change the prop valve for the brakes. i have no idea weather the front diff will bolt in or not though, and weather the cv axles will bolt on, has anyone else ever tried this before? any help would be awesome!